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All Journal Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai-Nilai Islami) Transformasi : Jurnal Pendidikan Matematika dan Matematika Prokons: Jurnal Teknik Sipil Jurnal Pengabdian kepada Masyarakat Jurnal Teknik Ilmu dan Aplikasi
moch. sholeh
Jurusan Teknik Sipil, Politeknik Negeri Malang
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Analisis Numerik Penyebaran Panas Pada Batang Baja 1-Dimensi Menggunakan Skema Beda Hingga Kompak Rofila El Maghfiroh; rif'atul khusniah; moch. sholeh; marjono marjono; dwi ratnaningsih
Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai-Nilai Islami) Vol 3 No 1 (2019): Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai Islami)
Publisher : Mathematics Department

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (386.706 KB)

Abstract

Dalam bidang konstruksi, baja sangat sering digunakan, contohnya adalah untuk pembangunan gedung dan pembangunan sarana transportasi. Salah satu proses pengolahan baja yang sering ditemui adalah proses perlakuan panas pada baja. Perlakuan panas pada suatu baja mengakibatkan terjadinya perpindahan panas. Pada kasus tertentu, fenomena perpindahan panas menjadi hal yang sangat penting untuk diamati. Hal tersebut dikarenakan adanya beberapa komponen memiliki kerentanan terhadap perubahan suhu yang mengakibatkan terjadinya penyebaran panas. Salah satu cara untuk mengamati penyebaran panas adalah dengan analisis numerik. Skema beda hingga kompak pada metode Crank-Nicolson menghasilkan solusi numerik pada persamaan konduksi panas yang diterapkan pada batang baja 1-dimensi. Analisis solusi numerik dilakukan di level waktu tertentu. Skema beda hingga kompak pada metode Crank-Nicolson memberikan solusi numerik dengan tingkat akurasi yang sangat tinggi.
PERBANDINGAN ANTARA PENGGUNAAN KAPUR DAN ABU SEKAM PADI UNTUK STABILISASI TANAH DASAR Dwi Nuryasin; Gerard Aponno; Moch Sholeh
Prokons: Jurnal Teknik Sipil Vol. 12 No. 1 February 2018
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v12i1.152

Abstract

The subgrade used for road construction should have a good bearing capacity, because the loads applied on the road construction are static and dynamic loads. If the CBR (California Bearing Ratio) value low so the subgrade of bearing capacity is not good. The purpose is to get the results of physical of the original soil, get the value of CBR laboratory of the original soil, get the CBR laboratory that has been stabilized using lime and rice husk ash, find out the optimum needs of lime and rice husk ash.Four original soil samples each of lime and rice husk had to go through an experiment by using 5%, 8%, 10% and 12% of lime and rice husk ash.  The experiment results in water content w = 58.12%, weight of the soil γt= 1.44 grm/cm3, specific gravity Gs=2.11, Liquid Limit LL = 67.28%, Plastic Limit PL=54.06%, Plasticity Index =13.21%, maximum dry matter weight = 1.342 gr/m3 CBR= 5.13% physical properties of original soil; medium plasticity properties; 10% maximum CBR value at 69.046% lime; 10% maximum CBR value at 8.476% rice husk ash. Keywords: lime, rice husk ash, stabilization, CBR
ANALISIS STABILITAS TUBUH BENDUNGAN PADA BENDUNGAN UTAMA PROYEK WADUK BENDO PONOROGO moch sholeh; M Suhartono; Nur Anisfi Choirini
Prokons: Jurnal Teknik Sipil Vol. 13 No. 2 August 2019
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v13i2.189

Abstract

      The work of embankment in the main dam with an upright core consists of 5 pile zones: the core, filter, random, rock, and rip-rap. There was difference in planning and implementation of embankment filling. Random and rock used quarry Bondrang in planning but blasting upstream of the excavated material was used in implementation. This difference is because there are social problems with the community surrounding the Bondrang quarry. The purpose of this thesis is to repair the dam foundation, to find out the seepage discharge, to analyze the possibility of piping, to determine the safety factor of slope stability in the dam, and to determine RAB Maindam of Bendo Dam Project Ponorogo.      The required data were of the geologic of the dam foundation, embankment materials, cross-sectional images of the dam body, and dam technical. Repairing the foundation using 3 methods : curtain grouting, consolidated grouting and blanket grouting; and for seepage calculations using the Cassagrande formula; to calculate safety figures using the Fellenius method and use the Geo-Studio 2012 application, the Seep / W program to find out the seepage discharge and the Geo-slope program to find out slope stability in maindam.      The analysis resulted in 3 methods of repairing dam:  curtain grouting with a depth of 39.83m, consolidated grouting with a depth of 5m, and blanket grouting with a depth of 15m; seepage discharge capacity <1% passing water average meaning safe; velocity seepage (7,3816 x 10-7m/sec) < velocity critical (0,004017m/sec) and 11,97  > 4 meaning safe for piping; >1.5 slope stability in various conditions without earthquake load meaning safe; 1.2 slope stability in various conditions with earthquake load meaning safe; the estimated cost IDR290,388,884,070.62 for main dam
Pengaruh Jumlah Pemadatan dan Tebal Hamparan Terhadap Kinerja RCC (Roller Compacted Concrete) untuk Perkerasan Jalan Raya Marjono Marjono; Mochamad sholeh; Udi Subagyo
Prokons: Jurnal Teknik Sipil Vol 16, No 1 (2022): Februari 2022
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v16i1.352

Abstract

AbstractRCC (Roller Compacted Concrete) is one of the results of innovation in the field of building materials, this material is made from a mixture of coarse aggregate, fine aggregate, cement and water in a certain ratio which is compacted by rolling. This material can be used for road pavement. RCC was chosen because it has advantages, one of which is that this material is able to produce a higher compressive strength at a young age, the pavement is smoother than conventional concrete and is not slippery so it does not need to be roughed/grooved. This advantage is needed in road pavement construction work, especially on roads that are immediately operated or implemented during the rainy season.The results showed that, with variations in the amount of compaction 12 times, 16 times, 20 times, 24 times, 32 times and 40 times, which were carried out on the thickness of the RCC. 5 cm, 6 cm and 7 cm. significant effect on the compressive strength of concrete, and the form of the equation, for a thickness of 5 cm at the age of 28 days: y = -0.0873x2 + 7.5459x + 158.83, for a thickness of 6 cm at the age of 28 days: y = -0.1403x2 + 13.33x + 86,397 and for 7 cm thick at 28 days old: y = -0.0456x2 + 5.2617x + 275.35Keywords: RCC, Roller Compacted Concrete, Road Pavement.
MENINGKATKAN NILAI CBR TANAH SUB-GRADE DENGAN STABILISASI TANAH KAPUR moch sholeh; yunaefi yunaefi
Prokons: Jurnal Teknik Sipil Vol. 13 No. 1 February 2019
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v13i1.179

Abstract

Poor soil properties and disadvantage when used as the basis of a building or road construction, including high plasticity, low shear strength, large volume or density changes and large shrinkage potential. Various methods are used to improve the strength of expansive clay soils, including by adding chemicals (chemical stabilization). Soil improvement that has been done is to mix the soil with lime, but only to review the dry density (γd). The purpose of this study is to explain the effect of adding lime to the soil on increasing CBR values, swelling, and knowing the optimum lime percentage in order to obtain maximum CBR and minimum swelling values. The results of the original soil swelling test showed a value of 9.14%, with the addition of lime percentage the swelling value showed a decrease. From the results of the addition of lime percentage showed the greatest decrease occurred in the addition of lime by 12% that is equal to 70.35%. So it can be concluded with the addition of lime will improve the original soil because it can reduce the value of swelling
PENDIRIAN TAMAN BACA MASYARAKAT SEBAGAI UPAYA PENINGKATAN LITERASI Sutikno; Ayisya Cindy Harifa; ikrar hanggara; Moch. Sholeh
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 1 No. 6: Nopember 2021
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/jabdi.v1i6.441

Abstract

Pencarian informasi yang dapat dilakukan dengan mudah melalui internet menjadikan masyarakat tak lagi terbiasa membaca teks panjang secara lengkap. Menyadari hal tersebut, tim dosen dari Politeknik Negeri Malang bekerja sama dengan lembaga swadaya masyarakat LAZ YASA Malang mendirikan taman baca masyarakat. Upaya tersebut juga sekaligus mendukung Gerakan Literasi Nasional yang diinisiasi Kementerian Pendidikan dan Kebudayaan Republik Indonesia. Selain itu, dengan menambah jumlah taman baca yang dikelola secara swadaya, diharapkan Gerakan Literasi Nasional dapat lebih dirasakan manfaatnya. Masyarakat tidak lagi kesulitan untuk memperoleh bahan bacaan, sehingga diharapkan dapat terhindar dari informasi bohong atau palsu. Oleh karena itu, pendirian taman baca masyarakat ini merupakan salah satu upaya peningkatan literasi di tengah derasnya arus informasi di internet, khususnya media sosial.
SIMULASI NUMERIK PERPINDAHAN PANAS BATANG BAJA MENGGUNAKAN SKEMA BEDA HINGGA KOMPAK PADA METODE CRANK-NICOLSON Rofila El Maghfiroh; Rif’atul Khusniah; Moch. Sholeh
TRANSFORMASI Vol 3 No 02 (2019): Transformasi: Jurnal Pendidikan Matematika dan Matematika
Publisher : Pendidikan Matematika FMIPA Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/tr.v3i02.708

Abstract

Perpindahan panas sangat penting untuk diperhatikan. Solusi numerik dari persamaan konduksi panas yang diterapkan pada batang baja 1-dimensi dilakukan untuk mengamati perpindahan panas pada baja. Skema beda hingga kompak pada metode Crank-Nicolson memberikan solusi numerik persamaan konduksi panas pada batang baja 1-dimensi dengan tingkat akurasi yang sangat tinggi.
PEMANFAATAN LIMBAH PLASTIK SEBAGAI MATERIAL TAMBAHAN PADA KONSTRUKSI TIMBUNAN RINGAN Gerard Aponno; Moch. Sholeh
Jurnal Teknik Ilmu dan Aplikasi Vol. 1 No. 2 (2020): Jurnal Teknik Ilmu dan Aplikasi
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1995.134 KB)

Abstract

Permasalahan terkait limbah saat ini telah menjadi isu yang mendapat perhatian serius baik secara nasional bahkan internasional. Berbagai macam limbah dihasilkan dari setiap sektor kehidupan, salah satunya berupa limbah plastik. Pada bidang konstruksi, limbah plastik diharapkan bisa menjadi salah satu alternatif material untuk timbunan ringan karena berat volume plastik yang lebih ringan daripada tanah. Tujuan penelitian ini yaitu menganalisis perubahan nilai CBR akibat penambahan limbah plastik, dan mengkaji pengaplikasian sebagai material timbunan ringan pada konstruksi jalan. Penelitian ini dilakukan di laboratorium dengan menggunakan butiran limbah Poly Propylene (PP) yang ditambahkan pada tanah dengan persentase sebesar 0 %, 12,5 %, 22,5 %, dan 32,5 % terhadap berat isi kering tanah. Hasil penelitian menunjukkan nilai CBR standard berturut-turut sesuai komposisi dalam kondisi unsoaked yaitu sebesar 17,73 %, 13,35 %, 9,66 %, dan 7,76 %. Pada kondisi soaked nilai yang dihasilkan sebesar 6,86 %, 5,13 %, 3,89 %, dan 2,69 %. Ditinjau dari pengujian CBR modified, nilai CBR yang dihasilkan untuk kondisi unsoaked yaitu 22,63 %, 18,31 %, 15,67 %, dan 10,93 %. Pada kondisi soaked nilai CBR sebesar 11,97 %, 10,49 %, 9,04 %, dan 8,14 %. Secara keseluruhan limbah plastik yang dicampurkan pada tanah menyebabkan penurunan nilai CBR
Co-Authors Ayisya Cindy Harifa Dwi Nuryasin dwi ratnaningsih Gerard Aponno Gerard Aponno Ikrar Hanggara, Ikrar M Suhartono Marjono, . Nur Anisfi Choirini Rif&#039;atul Khusniah Rif&#039;atul Khusniah Rofila El Maghfiroh Sutikno Udi Subagyo Yunaefi yunaefi yunaefi